Crank-shaft-dressing machine



J. H. SUTTER. CRANK SHAFT DRESSING MACHINE. APPLICATION FILED APR. 1.1920.

Patented Nov. 15, 1921.

%//JVENTOR BY Q ATTORNEY J. H. SUTTER.

CRANK SHAFT DRESSING MACHINE. APPLICATION FILED APR- 1. 1920.

1,397,152, Patented Nov.15, 1921;

2 SHEETSSHEET 2- l/l VEN TOR A 77 ORNE Y fillet;

JOSIAH H. SUTI'ER, 0F WICHITA, KANSAS.

CRANK-SHAFT-DRESSING MACHINE.

T 0 aZZ whom it may concern Be it known that I, Josmrr H. SUr'rEn, acitizen of the United States, residing at Wichita, in the county ofSedgwick and State of Kansas, have invented a new and usefulCrankshaft-Dressing, Machine, of which the following is a specification.

My invention relates to the improvement in machines for dressing thehearings on the crank-shaft of an engine, and the object of my inventionis to round up the bearings, without setting the crank-shaft in a lathe,thereby producing a true hearing.

I attain the objects of my invention by the mechanism illustrated in theaccompanying drawings in which like characters represent like parts inthe several figures.

Figure 1 is a side view of the dressing machine complete. Fig. 2 is anend view of the complete machine without the adjusting devices. Fig. 3is avertical section with a part removed displaying the working parts ofthe dressing machine.

Fig. 4: is one of two gages. Fig. 5 is one of two cutting knives. Fig. 6is the view of the upper end of the block, displaying the universaldepth gage adjustment. Fig. 7 is a universal centering device in thelower end of the yoke.

In Fig. 2 P P dotted line, showing a division of the block.

In Fig. 3 the following characters indicate the following parts of thedevice :A is the yoke or frame of the device; B is the block thatcarries the cutter and universal depth gages. C C are the cutter knives;D D are the depth gages that regulate the cut of the cutting knives andare equipped with cogs that mesh with W; F F are the longitudinal ribsin the bottom of the yoke for supporting the shaft in the bottom of theyoke opposite to the cutting knives; G G are the universal centeringarms for centering shaft in the dressing machine and are driven by screwQ and are journaled on It It; screw Q, is held in place by plate m, byscrews m m; S is the adjusting worm drive for cog and worm wheels Wwhich drive depth gages; 'I is the handle equipped with screw working inopening U of the yoke, for regulating the block B; Y is the lug on blockwhich is a seat for handle T; O is collar on S to seat against lug Y;the wheels W W' are equipped with cogs on one side which operate thedepth gages and screw on threads on the other side which are oper-Specification of Letters Patent.

Patei ited Nov. 15, 1921..

1920. Serial No. 372,102.

ated by the adjusting screw S; I I are screws which serve as journal forwheels W W H H H" are screws for clamping block B together at dottedline P P on Fig. 2; L is the hinge in the yoke; U is the opening inthe'yoke; N is the thumb, nut working on screw X which secures the lowerpart of the yoke to the upper; dotted lines K and K indicate thedifferent size of the bearings which may be operated upon; d d indicatethe position of depth gages; c 0 indicate the position of cutting kniveswhen adjusted for smaller sized hearing.

In Fig. 4 are depth gages D D to mesh on cogs on wheels W N.

To operate this machine, unfasten nut N opening the yoke and placing itaround bearing and fastening with thumb nut N wlth the bearing restingon the ribs F F, adjust the block down with the screw T until thecutting knives C C rest against the shaft; then adjust depth gages withthe collar S, adjust self centering arms G G with screw Q after whichrevolve the machine around bearing.

I claim- 1. In the crank-shaft dressing device, a yoke comprising upperand lower members hinged together, self-centering arms mounted in thelower member, a screw for adjusting said arms, a block mounted in theupper member of said yoke, means for adjusting said block, removablecutting knives and adjustable cutting gages mounted in said block, andmeans for adjusting said gages, substantially as shown and described.

2. In a crank-shaft dressing device, a yoke comprising upper and lowermembers hinged together, two self centering arms mounted in the lowermember, a screw threaded through the lower member and adapted to adjustsaid arms, the upper member having two parallel ridges extending fromend to end thereof, a block mounted to slide on said ridges and havingthe lower end formed into an arc of a circle, a hollow handle threadedthrough the upper member and adapted to adjust said block, removablecutting knives and adjustable cutting gages set in said block andprojecting beyond the arc, and an adjusting screw extending through saidhollow handle and adapted to adjust said gages, substantially as shownand described.

3. In a crank-shaft dressing tool, a yok having a threaded opening ineach end, the

inner surface of the parallel sides having double parallel ridgesextending from end to end thereof, the lower end of the yoke beingsemi-circular, screw driven self centering arms mounted in said lowerend, an adjustable block mounted to slide 011 said parallel ridges,cutting knives and adjustable cutter knife gages set in said block, ascrew for adjusting said gages, and a screw for adjusting said block,substantially as shown and described.

4:. In a crank-shaft dressing tool, a yoke comprising upper and lowermembers hinged together and adapted to be opened and closed, selfcentering arms having parallel shaft-supporting ribs mounted in thelower member, a screw for adjusting said arms, a block adjustablymounted in the upper member, the lower end of the block being formedinto an arc of a circle, removable cutter knives and adjustable cutterknife gages mounted in said block and adapted to be projected from saidarc, a hollow screw threaded through the upper member for adjusting theblock, and a screw drive extending through said hollow screw and adaptedto adjust said gages, substantially as shown and described.

J. H. S UTTER. Witness:

Mrs. J. A. CLINGER.

